Calculating-machine.



P. RAUCHWETTER.

CALCULATING MACHINE.

APPLICATION TILED FEB.24,1912.

1,127,677. Patented Feb.9, 1915.

6 SHEETSSHEET 1. A

I Inventor:

P. RAUCHWETTBR.

' CALCULATING MACHINE.

APPLICATION FILED IEB.

Patented Feb. 9, 1915.

6 SHEETSSH EBT 3.

F. RAUCHWETTER. CALCULATING MACHINE.

APPLICATION FILED r1313. 24, 1912.

Patented Feb. '9,1915.

6 SHEETSSHEET 6.

7 P. RAUCHWETTBR.

CALCULATING MACHINE. APPLICATION FILED rBB.24, 1912.

Patented Feb. 9, 1915.

6 SKEETE-SHEIFT 8.

Wfiness E5: W

UNITED STATES PATENT ossios.

FRANZ RAUCHWETTER, STEGLITZ, NEAR BERLIN, GERMANY.

CALCULATING-MACHINE.

Specification of Letters Patent.

- Patented Feb. 9. 1915- Application flied February 24, 1912. sa a No.679,578.

To all whom it may concern: v

Be it known that I, Fnaxz Raucnwn'rrnn, a subject of the German Emperor,residing at Schildhornstrasse 22, Steglitz, near Berlin, Germany, haveinvented certain new and useful Improvements in Calculating- Machines,of which the following is a speci fic-ation.

This invention relates to improvements in or modifications oi theinvention for which I obtained Letters Patent of the United States No.996,523, dated 27th June 1911.

In the specification of my aforesaid patent, a calculating machineespecially in tended for effecting multiplication is de' scribed, inwhich the movement of a. toothed rack through a distance proportional tothe product of two simple numbers is taken-,up. by a so-called tens andunitsmechanism and the tens'sectorsz to act upon each counting eadsto'great complexity of wheel, and this ccnstructicn in the case ofmachines made for a lar e number of-numerlcal places. A

further rawback is that, as the transfer of readings to the counterfromthe units and tens takes place separately, the countermust beconstructed as a differential mechanism so that the carrying over of thetens can be effected in the counter itself.

The object of my present invention is to avoid these drawbacks and toeffect a material simplification in the units and tens mechanism and inthe counter.

The principle of the invention consists in oausin each toothed rack 6 ofthe specifiedtion 0 my aforesaid principal-patent,- to transmit, througha suitable mechanism, to the next toothed rack 6, that is to the rackbelonging to the next higher numerical place a movement equi alent toone tenth of the movement of the first'mentioned rack so that whcnlanyone of the racks is moved throrgh a'certain distance the correspondingrack of the-next higher numerical place moves through a oistance'whichin that'numerical placerenresents in unitsthe num ber of units'oi thetens of the movementof the rack of the preceding numerical place.

It will be remembered, as before stated, that each rack 6 moves througha distance propcrticnal to the product of any two simple numbers so thatthe greatest distance any.

crack can be moved is that produced by the product-of 9X9 that is to say81 units, the units in any particular case being arbitrary according tothe dimensions and gearing of the parts but of course being uniformthroughout any particular machine. For

' instance in some machines the unit of move ment of each rack may be amillimeter. Suppose for the sake of example that a mechanism has beenmoved through units corresponding to the product of 5X5, then thetoothed rack belonging to the next higher numerical place' andconsequently the mechanism belonging thereto is moved through 2.5 units.With the construction described in con ne'cticn with the machine formingthe subject matter of my aforesaid patent, for registering the units ineach numerical place the stepped disk of the first mechanism in theparticular. example under consideration is turned back through 5 unitsso that with the improved construction the mechanism of the next highernumerical place is turned back through -a tenth part that is through 0.5units; so that although in the first instance the mechanism of thehigher numerical place had been mpved thrhugh 2.5 units, by the settingback and consequent registration of the 5 in the, first rumerical place,the mech: anism and rack of the next higher numerical place are set backthrough 0.5 units in that numerical place, and consequently the mech-'anism of the higher'numerical place is in such a position that when itis itself set back it' registers '2. thus exhibiting '25 at the counter.By the before described interconmotion between the neighboring mechanismthe necessity is avoided of a special arrangement of tens sectors nextto the units sectors in each numerical place. Moreover, the

necessity is avoided of carrying over the tens in the mechanismsthemselves, and consequently the necessity'of making the counter as adifferential mechanism.

I The nvention also comprises various constructi nalimprovements whichwill 'be' m re fullv described-and claimed hereafter, I

In the drawings accompanying this speci ficati n two methods of carryingthe inventirn into effect are illust ated. I

1 Figure 1 shows the. general arrangem",,t

of a machine with the new tens and units mechanisms, and one formof thecorresponding counter. Fig. 2 shows a tens and units mechanismconstructed in the same way as that illustrated at Fig. 1, but shown.

to an enlarged scale. Fig. 3 is a section on the line A, A Fig; 2., Fig.4 is a view' of a second method of constructing the new ters and unitsmechanism; Fig. 5 shows the same mechanism, in a different osition, withthe stepped wheel removed. ig. 6 shows the same mechanism, with thestepped wheel re moved and with the toothed sector itself in a differentposition. ing the connection between the actuating rack .of onemechanism and the next succeeding mechanism. a larged scale the counter,illustrating the means for effecting the carrying overof the tens, inone position. Figs. 9 and 10 are views of the operating parts in twoother positions, to that shown at Fig-8. Fig. 11 'is a plan of twocounter elements; Fig. 12 i's'a section through one counter disk whichshows a means for setting to zero all the coaxially mounted counterdisks of the counter.

As in the case of the machine forming the subject of my aforesaidpatent, lare lever arms which represent'the digits 0 to 9. These armsmay beset by the-multiplicand keys 2, carrying the digits 0 to 9, intoten different positions corresponding to these digits, by rotating thesaid arms about the point 0. The levers 1 are formed, as previouslydescribed with reference to the aforesaid patent, into two sectors 78 attheir ends, in the notches 79 between the teeth iOCn' the lever in theset position.

15 the sliding frame, which is slidable upon the levers 1 with theintrvention of a parallel link motion 10, 11, 12., 13 which enables theframe to be lowered. This frame operates the rod 6 by means of the arm99,

of w hich, a locking rod en ages in order to thereby actuating the rack6 of the tens and units mechanism. The lowering of the frame 8 iseffected, in one of the ways illuslratcd in the specification of theaforesaid patent. from the multiplicand key 7.

While, according to the construction described in the specificationof'the former patent. the actuating rack 6 and the rod 6 form a rigidwhole; with the present construction the .racks 6 which are movedthrough a distance proportional tothe prodnets of the simple numbers,are not directly connected so as to be rigid viith the rod 6, set by themultiplicand keys, but they are;connected by means of bent levers 4. 5,mounted upon pivots 3 of these rods. The arm 4 'of one of the bentlevers just lcscrihcd engages by means of a p vot 14' m the horizontalslot 15 of a cross arm 16. As long as this cross arm 16 remains at rest,the toothed rack 6 is in rigid connection Fig. 7 is a' view show- Fig. 8shows to an enwith the sliding piece 6, as the bent lever 4, 5 cannotmove, and, therefore, the parts 6 and 6 move together. If, however. thecross arm 16 is lowered, the sliding rod 6 remaining fixed, then thebent lever 4, 5 is swung over around the pivot 3, which is now fixed,and thereby moves the toothed rack 6 through a distance proportional tothe lowering of the cross arm. 7 This lower so formed, that on turningthe ring 19 through a distance proportional to ten units of movement ofthe rack 6, the cross arm 16 sinks so that the bent lever'4, 50f thenext higher mechanism, and consequently the rack 6 thereof is movedthrough unit distance. that is through a distance corresponding to thetenth of the distance moved by the toothed rack 6 of-the previous'nibmerical place. For example, supposingthe preceding toothed rack has,been moved through 63 units ofdistance the product of the simplenumbers 7 and 9 units of distance, then the next succeeding one is movedthrough 6.3 units of distance. To complete the setting of the parts thering 19, which is provided with locking teeth as described in thespecification of the former patent, is now moved so as to turn itbackward by three. This is ellected by means of the sector 21 having arecess 22. It may be mentioned that as many sectors 21 are provided asthere are numerical places, one such sector being mounted opposite eachnumerical place and that the recesses 22 of the successive sectors 21are so displaced with respec-t to one anotl1cr that when the shaftcarrying the sectors is rotated they operate successively upon thecorresponding notched wheels beginning at the lowest numerical place..The spindle carrying the sectors is' connected by any suitableintermediate gearing with the principal actuating spindle (operated fromthe handle 131 see Fig. 25 of the original specification) in such a waythat, when this handle is operated. each sector 21 is rotated through anangle of 360 degrees in the direction of the arrow Fig. 1. The ring 19is thus set back by the required amount so-that the following cross arm16 and the following'toothed rack 6 are moved back through 0.3 units.Consequently, the total movement of the following toothed rack in theexample under consideration is stepped disk of the former construction,is i toothed rack. The result is that, at each movement of one of thetoothed racks 6, by means of the slide rods 6, this supple mentarymovement of the rack is produced from the preceding toothed rack, bymeans of the interconnection just described between the two neighboringmechanisms. The transmission of the movement of the toothed racks 6 t0the counter is then effected by means of a toothed sector 23 whichengages the intermediate wheel 24 of the counter 25. For each toothedlocking ring 19, a sector 21 is provided, and a recess 22 in each ofsuch sectors. Each of these recesses in succession is somewhat largerthan the-recess in the disk for the next preceding numerical place, theresult being that the locking toothed rings 19 when themain ac gear withthecounter mechanism so that each sector in succession transmits itsmovement to the counter and the carrying over of the tens in the counteris effected from any one of the lower to the next higher numericalplace.

'Thesecond method of carrying out the construction of the tens and unitsmechanism with a toothed sector which engages with the toothed wheel ofthe counter mechanism is illustrated at Figs. 4 to 7. In this case also,as with the first method of carrying out theinvention, 6 is the toothedrack for actuat ng the mechanism, which is coupled with the ro'd 6 by abent lever 4, 5 turning upon the pivot 3. This bent lever engages bymeans of its horizontal arm 4, provided as before with a pivot 14 in theguiding groove 15 of the cross arm 16, movab e in a vertical direction,so that when the cross arm is at rest, the toothed rack 6 is rigidlyconnected to the rod 6, while conversely when the cross arm is lowered,but the slid ng rod 6 is kept still, the bent lever is swung over. andso the toothed rack 6 is moved through a distance proportional to thedownward movement. The downward movement of the cross arm 16 is in thiscase effected from the mechanism of the previous toothed rackG by meansof a stepped disk or stepped ring 26 rigidly coupled tthe next precedingmechanism. a projection or the like 27 in connection with the cross arm15 resting upon the steps of' the ring 26 and a spring 28 being providedfor normally pulling thelcross arm downward. When the next precedingmechanism is turned throligh a distance of 10 mm, the stepped disk 26 isturned through one step and then toward the second step. T e result isthat the cross arm 16 is lowered through such a distance as tocommunicate to the rack 6 of the next numerical place a movement 7through one unitof distance. Thus b the employment of afstepped diskor'o the stepped ring 26, the next following toothedv rack, incontrfiii'stinction towhat has been described with reference to thefirst method of carrying out the invention;as illustrated? in Figs. 1 to3, is moved exactly through a. distance corresponding to the number ofunits of the tens of the previous toothed rack, that is of the precedingnumerical place. movementof the toothed rack to the toothed segment 23and from the latter to the counter itself is in this method of carryingout the invention materially simplified,since Moreover, the transmissionof the the, parts do. not have to be. set forward and afterward setback. The sectors 21 and disks 19 are moreover dispensedwith. With thepresent-method of carrying out the construction illustrated at Figs. 4to 7, :1. stars 29 with 9 arms 30 at equal distances apart, is

provided attached to the stepped disk 26.

Each of the arms 30 is provided with a in 31, which is adapted, whenrotation ,ta es place to come into the path of the jaws 33 and 3-3,which are pivoted together at 3-1. For example, suppose a toothed rack 6is moved through 10 units of distance, then the star wheel 29is turnedthrough exactly one division. Suppose, again, that the toothed rack 6 ismoved through 25 units of distance, then the star wheel 29 moves through2.5 divisions and so the third arm comes into the way of the rack formedby the jaws 33 and 35. To one of the-jaws namely to the jaw 33 isconnected the toothe segment 23 by means of a link 32, while the jaw 35turns upon pivots 36 on a bar 3'? whichis actuated by the rod 38 andturns upon pivots 39 0n the jaw 33. The jaw 33 is provided with IOteethor notches 40 coming in different positions but similarly shaped, andthe jaw 35 is provided with ten teeth or notches 41.. Suppose now thatthe star wheel 29 is set from the rack 6, then a pin 31 moves throughadistance proportional to the number of units of distance through whichthe toothed rack 6 has the pivot 36, which is now fixed, until thecorresponding notch 10 also catches against the pin 31, as shown at Fig.6. This morement of the jaw 33 is communicated to the link piece 32 andconsequently to the sector 23. The'toothed'sector is raised into aposition to engage the toothed wheel 24 for effecting the actuation ofthe counter by means of an arm 42 turning about pivots 43. As willbe'seen from Fig. 11 one of these mechanisms is provided for eachnumerical place." In this way the transmission of the'movement is' nolonger elfected' by turning back the toothed segment that, isindirectly, but directly through the setting of the toothed sector.There is this further and important advantage as compared with the firstmethodof carrying out the invention, that it is nolonger necessary toprovide a special change mechanism for the counter for adapting it forsubtraction or division. If, for instance, the counter, instead of beingused for addition or m ultiplication, is to be used for subtraction ordi ision, it is onlynecessary that the toothed segment 23 should beraised into engagement with the toothed wheel 2 upon the return movementinstead of before the forward movement.

As, in both the first and second methods of carrying out the inventionas regards the tens and units mechanism, the carrying over of'the tensfor multiplication is effected in the mechanisms themselves it follbwsthat it is unnecessary to. make the counter in the manner described inthe specification of the original patent. It may be made like anyordinary counter with figure disks or rollers turned from the toothedsegments 23 by means of intermediate gear wheels with which they can berigidly coupled. The customary mechanism for carrying over the tns needonly be provided for the counter,

to make it possible for a number representing the result of a secondcalculation made by the machine to be added toone already on thecounter, for instance in multiplication.

The important feature of the mechanism for carrying over the tens,illustrated at F1gs8 to 1l of the drawings, consists of aconstruction'in which a counter disk which is tocarry over the tens tothe next follow-- the toothed: segment 23 through the inter" ventionof.the gear wheel 2*. The gear wheel 45 is located on a shaft on theframework, and the wheel 460a a pivot .48 upon the slide 49. The wheel47 is on anaxle 50 of the counter.. Ifthe wheel 45' is turned and theslide 49 is fixed, then the wheel47 is turned by the wheel 46 through acorresponding distance. the fixing) of the slide 49'inth1s position isefi'ected wit the actuating mechanism]; of the ma the window, then a'pinfiiproyide on the counter disk comesinto the osition shown onthedrawingat Fig. 8, an when further turning-takes place it comes againstthe surproviding at the end thereof, a slot-formed with beveled portions51, 'intofwhich engages a lateral 'pro'ection 54 on the disk 52 inconnection s5 chine. If the-counter disk-44 eomes into such a positionthat; the digit 9 ap ears at face ofthe beveled edge .56 of a- 'sector58 turning on an axle 57, thus bringing'the sector into the position,shownatr'ig. 9.-

The sector 58'is upled withthe slide 49 by the longitudina slot 59 andthe-pin 60 engaging therein in such a way that it can swing freely withrespect-to theulongitudinal direction of the slot and on swinging takewith it the slide 49. Consequently on turning the counter disk 44 intothe posi 1 tion shown at Fig. 9 the sector 58 is swu'ng outward untilthe pin 60 comes against the right hand side of the.slot 59. In this waythe preparation for the carrying over of the tens is completed, and nowif a -disk 61 keyed on the shaft 53, which disk is provided with a sideprojection 62 is moved in the direction of the. arrow 63 Fig. 9, thenthe side projection 62 comes against one of the sloping surfaces 64 onthe sector 58 and the sector is 'moved farther to the right into theposition shown at Fig. 10. In this way again the slide 49 being coupledto the sector 58 is carried along by'the action causing the gear wheel46 to roll upon the fixed toothed wheel 45, which thus turns the toothedwheel 47 through a corresponding distance, This completes the carrying.o\ er of the tens. It will be observed from Fig. 11 that the.

toothed wheel 46 in connection with the.

slide 49 of one numerical place rolls upon the gearwheel 45-to the nexthigher numerical place, and consequently turns the toothed wheel 47 ofthis numerical place. The restothe Forinstance in the case of a machinefor effecting multiplication, the rotation is effected by moving thehandle backward and forward each time it is required to effect themultiplication. This causes the projection 54 on the disk 52 to comeagainst slope 51 on the slide '49 drawing back this latter into thefirst position, the sector 58 being brought back in turn.

The method of operation in the case of subtraction th t is where thewheels of the mechanism are turned in the opposite direction, is theconverse of what has been described, and this follows from thesymmetrical formation of the beveled surfaces 51 and 64.

Fig. 12 is a-section through a counter element in which the countermechanism brings back the counter disk to zero by the axial movement ofthe axle 50. To effect this object, the hub 65 of the toothed wheels 47which turn the counter spindles 44 is made hollow, and in it is locatedfixedly a casing, the outer surface of which is cut away in screw formso that two exactly symmetrical screw like surfaces 67 and 68 areproduced. \Vithin the axle 50 of the counter is a projecting pin 69which comes against the surfaces 67 and 68 when the axle 50 is slidlongitudinally. Consequently the housing 65 and also the counter disk4i, brought into the middle position shown at Fig. 12 is turned back, nomatter to what number the ring 44 may be set. In this way it ispossible, by lon itudinal movement of the axle 50, to turn ack to zeroall the parts,which are provided in the same way with housing 66, thisturning back being effected by the pressure of'the pins against thehousings due to. the axial movement. What I claim as my invention anddesire to secure by LettersPatent of United States 1s:- 1. In a.calculating machine the combina tion of counting mechanism comprising anumber of figure drums, onefor each numerical placc,-multiplicand andmultiplier key mechanisms, an actuatingmember for each numerical lace ofthe counter mechanism, a pivoted lever for eachnumerical place havingmeans for setting it by. the multip'licand key mechanism, a partcooperative with and adjustable relatively to 1 each said lever, saidpart being operatively connected to the corresponding counter actin itfrom the multiplier key mechanism, mean for associating the operativemechanism for adjacent numerical places adapted cause the operatingmechanism of a succeeding numericalplace to be set by themechanism ofthe next preceding numerical place through a distance equivalent to onetenth of that through which the mechanism of the preceding place is set.

merical place, multiplicand and multiplier key mechanisms, an actuatingmember for each numerical place of the counter mechanism, a pivotedlever for each numerical place having means for setting it by themultiplicand key mechanism, a part coiiperative with and adjustablerelatively to each said lever, said part being operatively-connected tothe corresponding counter actuating member and having means'for settingit from the multiplier key mechanism, and means for associating theoperative mechanisms for adjacent numerical places, comprising a part inconnection with the'operativc mechanism of one numerical place, meansfor causing the said part to move proportionately to the movement ofsuch operative mechanism and means for transferring this proportionalmovement to the operative mechanism of the next succeedin numericalplace substantially as describe 3. in a calculating machine, thecombination of counting mechanism comprising a number of figure drumsone 'for each numerical place, actuating means for'each numerical placeof the counter mechanism, setting means for each numerical place of thecounter mechanism and operatively associated with the counter actuatinnism, multiplicand and multiplieri tually controlling the settingmechanisms and means for associating the operative mechaeys mumechanismsfor adjacent numerical places,

amount of movement of the said part, and

means for transferring such movement to another moving partin connectionwith the operative mechanism of the next succeeding numerical place forthe purpose set forth. 1

4. In a calculating machine, the combination of counting mechanism.comprising a number of figure drums one for each numerical place,actuatingmeans for each numeri;

cal place of the counter mechanism, setting means for each numericalplace ofthe counter. mechanism and operatively associated with thecounter actuating mechanism, multiplicand and multiplier keys mutuallycon trolling the setting mechanisms'and means for associating theoperative mechanism for adjacent numerical places, comprising a. part inconnection with each operative mechanism such part being adapted tomove, a rotatable device in connection ivith th'operati've mechanismprovided with a surface upon which a. projection in connection with?the/moving part rests, such surface bein formed in such a way that asthe rotatab 0 part r0- tion of counting mechanism, comprising a nu. 1 0

er of figure drums, one for each numerical place, actuating means foreach nu merical place of the counter mechanism, setting means for eachnumerical place of the counter mechanism and operatively associated withthe counter-actuating mechanism, inultiplicand andmultiplier keysmutually controlling the setting mechanism and means for associating theoperative mechani sm for adjacent numerical places,

comprising a cross arm in connection with the operative mechanism ofeach numerical place except the last,- a projection on such cross arm, astepped cam-like disk, rotatably connected with the, operative mechanismupon the Surface of which cam like disk the.

aforesaid-projection upon the cross arm rests, means for causing thecross arm to slide, and lever mechanism in connectionwith the cross armadapted totransmit the motion of the cross arm to the operativemechanism of the next s ucceedim numerical place substantially asdescribed.

6. In a calculating machine, the combinaticn of counting mechanismcomprising a number of figure drums, one for each nu merical place,actuating means for each numericalplace of the counter mechanism,setting means for each numerical place of the counter mechanism andoperatively associated with the counter actuating mechanism,multiplica'nd and multiplier keys mutually controlling the settingmechanism, and means for associating the operative mechanisms foradjacent numerical places, comprising a cross arm in connection with theoperative mechanism ofv each numerical place except the last. such crossarm being adapted to be pulled vertically downward by the action of aspring, a projection on said cross .arm, a stepped cam like diskrotatalily connected with the operative mechanism upon the surface ofwhich cam like disk the aforesaid projection upon the cross arm rests, aslot in the horizontal arm of-the cross arm, a bell crank lever providedat the end of one of' its arms with a pin working in the aforesaid slot.the other arm of such bell crank lev'er being pivotally connected to arack adapted to'actu'ate the operative mechanism of the next succeedingnumerical place substantially as described.

7Q In a calculating machine, the combination of counting Inc anism,comprising a nu'mbenof figure drums onefor each nu- 'merical place,actuating means for each nusr-erical place of the counter'mechan sm,setting meansgfor each numerical place of the counter mechanism, and.operatively associated with thecounter actuating mechanism,multiplicand and multiplier keys mutually controlling the settingmechanism,

means for a'ssociatingthe operative,mechanism for adjacent numericalplacescqmpris: ing a part in connection with the operative mechanism ofeach numerical place except the last, means for causing thesaid part tomove proportionately to the movement of such operative mechanism, 'meansfor causmerical place, actuating-means for each numerical place of thecounter mechanism setting means -for each numerical place 0 .the countermechanism, and operatively associated with the counter actuatingmechanism,'multiplicand and multiplier keys mutually controlling thesetting mechanism, means for associating the operative mechanism foradjacent numerical p aces comprising a cross arm in connection with theoperative mechanism of each numerical place except the.last,-such crossarm being adapted to be pulled vertically downward by the action of aspring, 'aprojection on said cross arm, a rotatable device in connectionwith the operative mechanism provided with a surface upon which theprojection in con: nection with the cross arm rests, such surface beingformed in such a way that as the rotatahlepart is rotated acorresponding relative movement is communicated to the cross arm, a slotin the horizontal arm of the cross arm, a bell crank lever provided atthe end off one of its arms with a pin working in the aforesaid slot.the other arm of such bell',cranl ,leverbeing pivotally connected to arack adapted to actuate the operative mechanism of the next succeedingnumerical place, and means for causing the rotatable part to be set backthrough a distance proportionate tothat through which it has'previouslybeenset forward due to the number of units beyond a'whole number oftens, such means comprising a circular grooved plate rotating with thecounter actuating mechanism. a toothed ring rotating therewith and adisk-like sector provided with arcess, such recessengaging with theteeth j of 'theftoothed ring; the Sectois Qfor' each numerical placebeing provided with progressively larger recesses, all substantially asdescribed.

9. In a calculating machine, the combination of counting mechanism,comprising a number of figure drums one for each numerical place,actuating means for each numericaliplace of the counter mechanism,setting means for each numerical place of the counting mechanism, andoperatively associated with the counter actuating mechanism,multiplicand and multiplier keys mutually controlling the settingmechanism, means for associating the operative mechanism for adjacentnumerical places, comprising a rotatable part in connection with theoperative mechanism of one numerical place, means for causing the saidpart to move proportionately to the movement of such operativemechanism, and means fortransferring this proportional movement to theoperative mechanism of the next succeeding numerical place, the meansfor transferring the setting of the operative mechanism to the countercomprising a star with nine arms rotating with the rotatable part inconncc tionwith the operative mechanism. a projecting pin on each arm ofthe star. two pivoted coiiperatin'g notched jaws adapted to grip a pinon one of the arms, means for operating the pivoted jaws, and suitableconnecting links between the jaws and the actuating sector of thecounter so that the counter is set according to the position in whichthe jaws are stopped by any particular projecting pin substantially asdescribed.

10. In a calculating machine, the com bination of counting mechanismcomprising a number of'figure drums one for each numerical place, meansfor carrying over the tens from the counter drum of one numerical placeto that of the next place comprising a freely swinging sector, a slidingplate provided with slot in which works a pin on the aforesaid sector, apair of sloping irojections on said slide with an opening )ctwecn them,another pair of sloping proections on the freely swingin sector alsowith an opening between them, a disk rotated by the actuating mechanismof the machine provided with projections adapted to engage with, workagainst, and between,

the beforementioned slopes on the slide and swinging sector, anothersloping portion on the sector adapted to be engaged by a pin on thecounter disk once every revolution and a toothed pinion in connectionwith the slide by means of which agpinion on the counter drum and apinion 1n connection with the operating mechanism of the correspondingnumerical place can be intergeared, actuating means for each numericalplace of the counter mechanism, setting means for each numerical placeof the counter mechanism, and operatively associated with the counteractuating mechanism, multiplicand and multiplier keys mutuallycontrolling the setting mechanisms and means forassociating the.operative mechanism for adjacent numerical places substantially asdescribed.

11. In a calculating machine, the combinatirn of counting mechanism,comprising a number of figure drums one for each numerical place, eachof such drums being provided with a hollow casing mounted upon a centralshaft. such shaft being adapted to be slid longitudinally, screw-likesurfaces in each housing, a pin on the shaft for each housing. adaptedwhenthe shaft is slid longitudinally to move'back each drum so that thezero indication may appear at 4 the window, actuating means for each nu-FRANZ R'AUCHlVETTER.

Witnesses Hsxuy HAsrnR, \VoLosimn IIAUPT.

